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Last Updated: Oct 23, 2026
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| Certification Vendor: | Cisco |
|---|---|
| Exam Name: | Maintaining Cisco Service Provider Quality of Service (MSPQS) |
| Exam Number: | 642-785 |
| Exam Price: | USD 300 (varies by region) |
| Exam Duration: | 90 minutes |
| Certificate Validity Period: | 3 years (typical Cisco certification validity) |
| Available Languages: | English |
| Real Exam Qty: | 40-60 |
| Related Certifications: | Cisco Service Provider QoS Specialist CCNP Service Provider |
| Exam Format: | Scenario-based questions, Simulation, Multiple choice |
| Recommended Training: | CCNP Service Provider Learning Path Cisco QoS Training (Cisco Learning Network) |
| Exam Registration: | Pearson VUE Cisco Exams Cisco Certification Registration |
| Sample Questions: | DOWNLOAD DEMO |
| Exam Way: | Computer-based exam delivered via Pearson VUE testing centers or online proctored exam |
| Pre Condition: | Recommended: CCNA or equivalent networking knowledge; Cisco Service Provider or CCNP-level experience is beneficial |
| Official Syllabus URL: | https://learningnetwork.cisco.com |
| Section | Objectives |
|---|---|
| Topic 1: QoS Troubleshooting and Monitoring | - Verification tools and commands - Identifying QoS misconfiguration issues |
| Topic 2: QoS Fundamentals | - Traffic characteristics and service requirements - QoS models (Best Effort, IntServ, DiffServ) |
| Topic 3: QoS Classification and Marking | - Packet classification methods (ACLs, NBAR) - Marking techniques (DSCP, CoS, IP Precedence) |
| Topic 4: Service Provider QoS Implementation | - MPLS QoS and DiffServ tunneling - MQC (Modular QoS CLI) framework |
| Topic 5: Policing and Shaping | - Traffic shaping mechanisms and use cases - Traffic policing concepts and configuration |
| Topic 6: Congestion Management and Avoidance | - Queuing mechanisms (LLQ, CBWFQ) - Congestion avoidance (WRED) |
The 642-785 exam is Cisco's official assessment for the Cisco Service Provider Quality of Service (QoS) Specialist certification, which sits at the Professional level. It verifies that you can work with the Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) skill set the way real jobs demand — not merely recognize the terminology. It also belongs to a certification family that includes CCNP Service Provider, Cisco Service Provider QoS Specialist, so passing it strengthens your position across multiple career paths. For newcomers and veterans alike, the 642-785 exam is the kind of credential that converts effort into evidence.
The Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) blueprint contains 6 domains, beginning with QoS Classification and Marking, QoS Troubleshooting and Monitoring, and QoS Fundamentals. Use the weightings like a map of where the points live — the heaviest domains earn the largest share of your study hours. The complete topic list is in the exam topics section above; study against it, and nothing in the exam will feel unannounced.
You're looking at 40-60 questions inside 90 minutes on the Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) exam. Do the division now and memorize your per-question budget; on exam day, anything that blows its budget gets flagged and revisited with leftover time. Timed practice is what makes this instinctive — the ActualTestsQuiz PC test engine runs time-limited mock exams and scores them automatically, so you arrive already knowing your pace.
The official Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) format list includes: Multiple choice, Simulation, Scenario-based questions. Each format rewards a specific skill — scenario items reward careful reading order, multi-select items reward completeness — so practice should cover all of them, not just your favorites. ActualTestsQuiz's 91 practice questions span the full list, which means the exam's mechanics feel rehearsed and only its content requires thought.
Cisco offers the 642-785 exam in English. Choose the language you process fastest when the clock is running — comprehension speed quietly decides borderline results. If English is your pick, working through ActualTestsQuiz's English 642-785 practice questions builds precisely the vocabulary the exam will use against you.
Passing the Cisco Maintaining Cisco Service Provider Quality of Service (MSPQS) exam earns a credential valid for 3 years (typical Cisco certification validity). Record the expiry date as soon as you pass, and look into recertification options well in advance — a renewal planned early is trivial, a lapsed credential is not. Recertification policy belongs to Cisco and changes periodically, so confirm the current rules on the official certification page.
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Refer to the exhibit.
The QoS profile was recently updated to mark VoIP traffic with a DSCP setting of AF41. However, the traffic going to the phones in the 172.19.5.0/24 address space is not being marked properly. What is causing this problem?
Correct Answer: D 🗳️
Refer to the exhibit.
The voice traffic is not receiving the appropriate per-hop behavior at the egress of the CEPE link. What is the problem?
Correct Answer: B 🗳️
Which two Cisco IOS commands can be used to monitor QoS on a device? (Choose two.)
Correct Answer: A,D 🗳️
Which is the preferred queuing method provided by Cisco IOS Software for a converged VoIP network?
Correct Answer: C 🗳️
Refer to the exhibit.
A customer reports that data between their sites across your network is very slow and that
voice and video quality are unacceptable. Packet traces of data coming in from and going out to the customer confirm that many packets are being dropped in your network, and many of those that are not dropped are being remarked to CS1. Class maps and a policy map configured as shown are applied inbound to the Fast Ethernet interfaces that connect the customer. What could be the problem?
Correct Answer: A 🗳️
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